Toilet and shower drain plumbing check??


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Old 09-08-22, 09:58 PM
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Toilet and shower drain plumbing check??

I am plumbing a shower drain into the existing toilet plumbing, not sure if my plumbing is correct or not. I haven't glued in the 2" shower drain yet, if anyone has any correction suggestions let me know. Thanks



 

Last edited by PJmax; 09-09-22 at 09:44 PM. Reason: labeled 2nd pic
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Old 09-09-22, 09:51 PM
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No.... that isn't going to work. You need air behind water. If you use what you have.... the toilet flushing will empty the shower trap creating an open sewer line.

What is that pipe at the yellow arrow ?
It looks to be connected to the toilet stack in the wrong direction.

A similar thread..... Need help tying a shower into a toilet drain line

I'm not the plumbing pro. They should be by.
 
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Old 09-10-22, 10:15 AM
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I agree, that wye fitting underneath the wall connecting to the vertical vent is installed backwards. The sweep must point downstream.

PJmax is also correct about where the shower should not be connecting. It should tie into the drain line on the downstream side of the vent but not on the upstream side as you have. You also need to make sure you have less than 5 feet of pipe length from the shower's trap to the vent. It looks like you will be close.
 
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Old 11-12-22, 03:26 PM
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I cut out the old plumbing and mock up a new one. The center of the shower drain to the roof vent is 4 feet.
 
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Old 11-13-22, 08:53 AM
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I like that layout much better!
 
 

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